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ARD:基线可溶性免疫检查点与诱导缓解后 PR3-ANCA 血管炎复发风险的关联

2022-09-13 MedSci原创 MedSci原创

当 sLag-3 浓度低而 sCD27 浓度高时,接受利妥昔单抗治疗的AAV患者获得缓解的频率较低。基线时较高浓度的 sTim-3、sCD27 和 sBTLA 可预测接受利妥昔单抗治疗的患者复发

目的该研究调查了可溶性免疫检查点 (sICPs) 是否可以预测抗中性粒细胞胞质抗体 (ANCA) 相关血管 (AAV) 患者的治疗耐药性、复发和感染。

方法:通过对蛋白酶 3 (PR3) 或髓过氧化物酶 (MPO)-ANCA 血管炎患者的免疫吸附测定法测量 RAVE 试验期间获得的可用样本的血浆 sICP 浓度,并与临床结果、一组生物标志物和现成的流式细胞术数据进行侧重于 T 细胞亚群的分析。对数秩检验用于评估生存益处,并使用 Yeldons J 计算标记分子的最佳截止值。

结果:对基线 189 份血浆样本的分析显示,与 PR3-ANCA 血管炎患者相比(n =127),MPO-ANCA血管炎患者(n=62)具有更高浓度的Tim-3, sCD27, sLag-3, sPD-1和sPD-L2在接受利妥昔单抗诱导治疗的患者 (n=95) 中,较低的可溶性 (s)Lag-3 (<90pg/mL) 和较高的 sCD27 (>3000pg/mL) 联合预测治疗失败 6 个月时达到缓解的利妥昔单抗组 73 名患者中有 24 名(32.9%)在随访期间复发。在该亚组中,sTim-3 (>1200pg/mL)sCD27 (>1250pg/mL) sBTLA (>1000pg/mL) 的高基线值与持续缓解和感染并发症相关。这些发现无法在随机接受环磷酰胺/硫唑嘌呤的 94 名患者中重复。

结论:当 sLag-3 浓度低而 sCD27 浓度高时,接受利妥昔单抗治疗的 AAV 患者获得缓解的频率较低。基线时较高浓度的 sTim-3sCD27 sBTLA 可预测接受利妥昔单抗治疗的患者复发这些结果需要确认,但可能有助于 AAV 的个性化治疗方法。 

出处:Gamerith G, Mildner F, Merkel PA, et al. Association of baseline soluble immune checkpoints with the risk of relapse in PR3-ANCA vasculitis following induction of remission. Ann Rheum Dis. 2022 Aug 16:annrheumdis-2022-222479. doi: 10.1136/ard-2022-222479. Epub ahead of print. PMID: 35973802.

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    2022-09-14 一叶知秋

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